- rara avis (n.)
[rara avis 词源字典]
- c. 1600, "peculiar person," from Latin rara avis, literally "strange bird," from rara, fem. of rarus "rare" (see rare (adj.1)) + avis "bird" (see aviary). Latin plural is raræ aves. Horace's peacock (a Roman delicacy), Juvenal's black swan ("Rara avis in terris, nigroque simillima cygno").[rara avis etymology, rara avis origin, 英语词源]